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Finding the Fourth Proportional to 15,092.98, 20,829.63 and 8,807.38

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Solution

The fourth proportional to 15,092.98, 20,829.63 and 8,807.38 is: 12,154.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,092.98 : 20,829.63 = 8,807.38 : x
  2. Step 2: Convert to fraction form
    15,092.98/20,829.63 = 8,807.38/x
  3. Step 3: Cross multiply
    15,092.98x = 20,829.63 × 8,807.38
  4. Step 4: Simplify right side
    15,092.98x = 183,454,466.67
  5. Step 5: Solve for x
    x = 183,454,466.67/15,092.98
  6. Step 6: Final answer
    x = 12,154.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.